BTEX + MTBE & Styrene Back Catalog number: 95020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4375-K-IP EPA 604, Surrogate Standard as PFB derivatives S-4375 1 Analyte, 200 µg/mL in methanol, 5mL or 1mg/mL in isopropanol, 1mL 2,4,6-Tribromophenol-PFB Price on request 33851 n-Octadecane Price on request 71378 4,4’-Diamino-3,3’-dimethyldiphenylmethane Price on request